EP1215327B1 - Breitstreckwalze für Gewebe oder dergleichen - Google Patents

Breitstreckwalze für Gewebe oder dergleichen Download PDF

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Publication number
EP1215327B1
EP1215327B1 EP01830753A EP01830753A EP1215327B1 EP 1215327 B1 EP1215327 B1 EP 1215327B1 EP 01830753 A EP01830753 A EP 01830753A EP 01830753 A EP01830753 A EP 01830753A EP 1215327 B1 EP1215327 B1 EP 1215327B1
Authority
EP
European Patent Office
Prior art keywords
elements
disk
roller
spreading
perimetral
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
EP01830753A
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English (en)
French (fr)
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EP1215327A2 (de
EP1215327A3 (de
Inventor
Bassi Massimo
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Individual
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Individual
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Filing date
Publication date
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Publication of EP1215327A2 publication Critical patent/EP1215327A2/de
Publication of EP1215327A3 publication Critical patent/EP1215327A3/de
Application granted granted Critical
Publication of EP1215327B1 publication Critical patent/EP1215327B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the subject of the present invention is a so-called widening bar, i.e., a roller for transverse spreading-out of web-like materials, such as films, fabrics and the like, which are partially entrained around the roller, the said roller comprising projections designed to act transversely in opposite directions on the material that is passing.
  • rollers are used that have two opposed helical projections which extend from the centre towards the two ends of the roller. During rotation in contact with the web-like material that is passing, the projections tend to widen out transversely, and hence stretch, the material that is passing in opposite directions towards the edges, with an effect that is not always satisfactory and without much possibility of adaptation to the varying needs of the materials to be treated, as well as to other requirements.
  • Other types of rollers have elastically deformable projections, so that an effect is obtained that is approximately equivalent to that of the rollers described previously, but with not particularly appreciable results.
  • DE 300550 , US1716555 , GB07944 and CH 84434 disclose rollers of the abovementioned kind.
  • the subject of the present invention is a roller for spreading out, or a widening bar, which solves the problem in a satisfactory way and with effects that can also be adjusted and adapted to the materials being treated.
  • the roller is made up of disk-like elements, each of which rotates about its own axis, the axes of rotation of said disk-like elements being slightly inclined with respect to the axis of the roller; said disk-like elements are thus inclined.
  • they present a perimetral surface designed to exert an action of contact friction on the material.
  • the said disk-like elements are in practice mounted on the roller by means of bearings, either sliding bearings or rolling bearings, supported by mutually engaged cores.
  • the axes of rotation of said disk-like elements advantageously lie substantially in one and the same geometrical plane which passes through the axis of the roller.
  • the said axes of rotation of said disk-like elements may be parallel to one another or be variably inclined also in groups and/or with smooth, i.e., neutral areas.
  • the aforesaid disk-like elements may have their perimetral edges made of resilient material, or else rough metallic material, or alternatively may have their perimetral edges formed by filiform components, such as bristles, pins, or equivalent structures.
  • the perimetral edge of the roller may present a conical development and be designed to undergo flexural deformation.
  • At least one of said guiding means is position-adjustable for modifying the amplitude and/or the position of the arc of contact of the web-like material with the perimetral surfaces of the disk-like elements that make up the roller, with respect to the inclination of the disk-like elements.
  • a roller for transverse spreading-out of web-like material such as a film, a fabric or the like, is designated, as a whole, by the reference number 1, and consists of an axial shaft 3 on which a multiplicity of disk-like elements are arranged, each of which is designated by 5 and will be described in greater detail in what follows.
  • the shaft 3 may be a fixed supporting shaft on which cores 51 for supporting the rotating part of each of the disk-like elements 5 are arranged.
  • Mounted on a bearing 53 carried by each core 51 is an annular component 55, on which the perimetral portion 57 of the disk-like element is mounted.
  • this perimetral portion constitutes the perimetral surface of contact with the material, and is formed with a lip 57A having a development basically shaped like a truncated cone and made of an elastically flexible material, such as rubber or the like, to form the perimetral contact surface 57B.
  • the conformation of the said perimetral portion 57 is such that, when a centripetal radial load is applied, as indicated by the arrow fp of Fig. 2, the lip 57A basically shaped like a truncated cone tends to undergo deformation locally until it assumes the configuration indicated by the dashed-and-dotted line in Fig. 3, thereby determining displacement, by an amount Z, as illustrated in Fig. 3, in the axial direction, of the perimetral surface 57B up to the position 57B 1 .
  • the disk-like elements 5, as described above are divided into two areas that make up two symmetrical parts with respect to the median transverse plane M of Fig. 1.
  • the disk-like elements 5 are equally inclined with respect to one another, but the disk-like elements 5 of one half of the roller are inclined in a direction opposite to the direction of the disk-like elements 5 of the other half.
  • the cores 51 arranged on the shaft 3 provide the seat for the respective bearings 53, which is inclined according to an axis Y-Y inclined by the angle A with respect to the axis X-X of the supporting shaft 3. Consequently, also the component 55 and the perimetral portion 57 of the disk-like element 5 develops according to the axis Y-Y.
  • the cores 51 and hence the disk-like elements 5 as a whole, are mounted in such a way that their axes Y-Y, which are inclined with respect to the axis X-X by the angle A, all lie on one and the same diametral geometrical plane of shaft 3.
  • the cores 51 have opposed front teeth 51A and 51 B which enable mutual angular engagement of said cores 51 arranged on the shaft 3, so that there are no reciprocal angular displacements of the cores 51.
  • the geometrical plane that contains the axes Y-Y of the individual cores 51 may be appropriately oriented about the axis X-X, either by manoeuvring of the shaft 3 to which the cores 51 may be angularly connected or by angular manoeuvring of the row of cores 51 that are connected together and angularly mobile about the shaft 3, with respect to which they do not have stable connection.
  • the set-up described above allows for possible limited variations.
  • the perimetral surface 57B of the various disk-like elements constitutes the perimetral surface of friction contact with the material to be processed.
  • the said material to be processed is designated by T, and may be, for example, a fabric or a film, or the like, that is to be spread out transversely with respect to its web-like development.
  • the material T is fed to the roller 1 and is recalled and moved away from the roller 1 in such a way as to undergo an angular deviation which, as is clearly illustrated in the diagrams of Figs. 7 to 9, may also be variable, as indicated by the angles B, C and D of Figs. 7, 8 and 9, for the purposes that will be explained hereinafter.
  • the disk-like elements 5 have a spreading-out effect on account of their inclination due to their being mounted according to the axes Y-Y which are inclined with respect to the axis X-X of the roller along the arc that goes from the point In of start of contact of the material T with the roller 1 as far as the point U of exit of the material T from contact with the roller 1.
  • the said guiding means 12 may be a roller that can be displaced from the position 12A up to the position 12B through intermediate positions, such as the position 12C, as illustrated in Figs. 7, 9 and 8, respectively. From the displacement of the said guide means 12 between the various positions there is obtained an arc of contact that is different between the material T and the peripheral surface of the roller: the arc I1-U of Fig. 7 is smaller than the arc 12-U of Fig. 8 and smaller still than the arc I3-U of Fig.9.
  • the same function may be achieved by modifying the output point U with respect to the start-of-contact point of the material with the peripheral surface of the roller 1.
  • the amplitude of said arc of contact may also be modified by simultaneously varying the positions of the two points In and U with respect to the position of the axes Y-Y which are inclined with respect to the axis X-X.
  • the perimetral surface of the disk-like elements which exerts a contact friction with the material instead of consisting of the surface 57B shown in Figs. 1 to 4, may consist of a series of pins or bristles 157 which have a basically radial orientation and start from the periphery of each of the disk-like elements 105.
  • the said bristles or pins 157 penetrate, purely by way of example, into a fabric and perform the spreading-out function in the same way as the surface 57B of the periphery of each of the disk-like elements 5. Smooth materials having a high coefficient of friction and/or materials machined in order to increase roughness can be used.
  • Fig. 6 shows another variant embodiment, according to which bristles or pins 257 are provided on the periphery of each of the disks 205 (which are equivalent to the disk-like elements 5 or 105), with the difference, with respect to the solution illustrated in Fig.
  • Fig. 10 shows a variant in which the disk-like elements do not present projecting peripheral portions.
  • Figs. 11, 12 and 13 show other embodiments, in which the roller has a number of sections with different shapes, among which at least one smooth section and/or sections with disk-like elements having different inclinations.
  • the invention makes it possible to achieve the advantages mentioned at the beginning of the present description, with the further possibility of adjustment even during operation of a machine, in order to vary the amount of transverse spreading-out of the material that reaches the roller 1 and is more or less deviated by the said roller.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Decoration Of Textiles (AREA)
  • Winding Of Webs (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Claims (9)

  1. Rolle für das Spreizen in Querrichtung für einen Aufweitbalken für bahnförmige Materialien, wie Folien, Gewebe oder dergleichen, die teilweise um die Rolle herumgeführt werden, welche Oberflächen oder Vorsprünge aufweist, die für das Einwirken in Querrichtung in entgegengesetzten Richtungen auf das durchlaufende Material ausgebildet sind, umfassend scheibenförmige Elemente (5), von denen jedes eine Umfangsfläche (57B) hat, die dafür ausgebildet ist, Kontaktreibung auf das Material auszuüben, und um ihre eigene Achse rotiert, wobei die Rotationsachsen der scheibenförmigen Elemente (5) bezüglich der Achse (x-x) der Rolle geneigt sind, und wobei jedes scheibenförmige Element (5) auf einer Tragachse (3) mittels Wälzlagern oder Gleitlagern (53) gelagert ist, die von auf der Tragachse (3) angeordneten Kernen (51) gestützt werden, wobei die Kerne (51) und damit die scheibenförmigen Elemente (5) insgesamt so gelagert sind, dass ihre Achsen (y-y), die bezüglich der Achse (x-x) der Rolle unter einem Winkel A geneigt sind, alle in ein- und derselben geometrischen Diametralebene der Tragachse (3) liegen, dadurch gekennzeichnet, dass die Kerne (51) durch einen gegenseitigen Winkeleingriff miteinander verbunden und drehbeweglich um die Tragachse (3) sind, derart, dass die geometrische Ebene, die die Achsen (y-y) der einzelnen Kerne (51) enthält, in geeigneter Weise um die Achse (x-x) der Rolle orientiert werden kann.
  2. Spreizrolle nach Anspruch 1, dadurch gekennzeichnet, dass die Drehachsen (y-y) der scheibenförmigen Elemente (5) in ein- und derselben geometrischen Ebene liegen, die durch die Achse (x-x) der Rolle verläuft.
  3. Spreizrolle nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Drehachsen (y-y) der scheibenförmigen Elemente zueinander parallel sind.
  4. Spreizrolle nach mindestens einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die scheibenförmigen Elemente Umfangsränder aus elastisch nachgiebigem Material haben.
  5. Spreizrolle nach mindestens einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die scheibenförmigen Elemente Umfangsränder aus einem Material mit hohem Reibungskoeffizienten haben.
  6. Spreizrolle nach mindestens einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die scheibenförmigen Elemente Umfangsränder aus filamentförmigen Elementen, wie Borsten, Stifte oder äquivalente Elemente, haben.
  7. Spreizrolle nach mindestens einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Umfangsrand konisch geformt ist.
  8. Spreizrolle nach mindestens einem der Ansprüche 1 bis 7, mit Führungsmitteln zum Führen des der Rolle zugeführten oder von ihr weggeführten bahnförmigen Materials, dadurch gekennzeichnet, dass mindestens eines der Führungsmittel in seiner Position einstellbar ist, um die Amplitude oder die Position des Berührungsbogens des bahnförmigen Materials an der Umfangsfläche des die Rolle bildenden scheibenförmigen Elements relativ zur Neigung des scheibenförmigen Elements zu ändern.
  9. Spreizrolle nach mindestens einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Rolle von Scheiben gebildete Abschnitte und mindestens einen glatten Abschnitt aufweist.
EP01830753A 2000-12-18 2001-12-10 Breitstreckwalze für Gewebe oder dergleichen Expired - Lifetime EP1215327B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2000FI000252A IT1314888B1 (it) 2000-12-18 2000-12-18 Barra allargante per spianare materiale nastriforme come tessuti odaltro, in forma di rullo composito
ITFI000252 2000-12-18

Publications (3)

Publication Number Publication Date
EP1215327A2 EP1215327A2 (de) 2002-06-19
EP1215327A3 EP1215327A3 (de) 2004-04-28
EP1215327B1 true EP1215327B1 (de) 2007-09-05

Family

ID=11442013

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01830753A Expired - Lifetime EP1215327B1 (de) 2000-12-18 2001-12-10 Breitstreckwalze für Gewebe oder dergleichen

Country Status (5)

Country Link
EP (1) EP1215327B1 (de)
AT (1) ATE372408T1 (de)
DE (1) DE60130310T2 (de)
ES (1) ES2291290T3 (de)
IT (1) IT1314888B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220234365A1 (en) * 2021-01-28 2022-07-28 Kyocera Document Solutions Inc. Recording apparatus capable of printing elastic medium
US20220234370A1 (en) * 2021-01-28 2022-07-28 Kyocera Document Solutions Inc. Recording apparatus capable of printing elastic medium

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI119192B (fi) * 2004-05-11 2008-08-29 Piippo Oy Menetelmä ja laitteisto sidontaverkkkorullan aikaansaamiseksi, kudontalaitteisto sekä sidontaverkko
EP3067300B1 (de) 2015-03-10 2017-11-15 Fait Group S.P.A. Vorrichtung zum ausbreiten und führen und zentrieren von bandförmigem material
KR101952266B1 (ko) * 2017-11-15 2019-02-27 주식회사 용진 익스팬더 롤러

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE300550C (de) *
GB190907944A (en) * 1908-04-02 1909-11-11 Wilhelm Mueller Spreading and Guiding Roller for Fabrics and the like.
FR443241A (fr) * 1911-01-07 1912-09-19 Edwin Arthur Fish Appareil avertisseur pour navires
CH84434A (de) * 1919-05-31 1920-03-16 Bemberg Ag Breitstreckwalze für Gewebebahnen
US1716555A (en) * 1926-06-08 1929-06-11 Thomas E Kane Method of spreading or stretching material
JPS5841737U (ja) * 1981-09-11 1983-03-19 東洋機械株式会社 拡布用スクリュ−ロ−ル
US4656702A (en) * 1984-12-31 1987-04-14 Isamu Tsuchida Expander and guider roller
DE3914732A1 (de) * 1989-04-29 1990-10-31 Castagna Wolfgang Andrueckeinrichtung zum fuehren von textilen warenbahnen oder dergleichen
AT401044B (de) * 1993-12-16 1996-05-28 Koren Erwin Lamellenring, insbesondere für breitstreckwalzen, sowie damit versehene einrichtung zur führung bahnförmiger materialien und verfahren zu deren herstellung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220234365A1 (en) * 2021-01-28 2022-07-28 Kyocera Document Solutions Inc. Recording apparatus capable of printing elastic medium
US20220234370A1 (en) * 2021-01-28 2022-07-28 Kyocera Document Solutions Inc. Recording apparatus capable of printing elastic medium
US11820127B2 (en) * 2021-01-28 2023-11-21 Kyocera Document Solutions Inc. Recording apparatus capable of printing elastic medium
US11827012B2 (en) * 2021-01-28 2023-11-28 Kyocera Document Solutions Inc. Recording apparatus capable of printing elastic medium

Also Published As

Publication number Publication date
DE60130310D1 (de) 2007-10-18
DE60130310T2 (de) 2008-05-29
ES2291290T3 (es) 2008-03-01
ATE372408T1 (de) 2007-09-15
EP1215327A2 (de) 2002-06-19
EP1215327A3 (de) 2004-04-28
IT1314888B1 (it) 2003-01-16
ITFI20000252A1 (it) 2002-06-18

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