EP2025792B1 - Machine à brosser pour tissus - Google Patents

Machine à brosser pour tissus Download PDF

Info

Publication number
EP2025792B1
EP2025792B1 EP08425510A EP08425510A EP2025792B1 EP 2025792 B1 EP2025792 B1 EP 2025792B1 EP 08425510 A EP08425510 A EP 08425510A EP 08425510 A EP08425510 A EP 08425510A EP 2025792 B1 EP2025792 B1 EP 2025792B1
Authority
EP
European Patent Office
Prior art keywords
contrast element
brush
axis
fabric
machine according
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.)
Active
Application number
EP08425510A
Other languages
German (de)
English (en)
Other versions
EP2025792A1 (fr
Inventor
Guido Giorgetti
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.)
Unitech Textile Machinery SpA
Original Assignee
Unitech Textile Machinery 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 Unitech Textile Machinery SpA filed Critical Unitech Textile Machinery SpA
Publication of EP2025792A1 publication Critical patent/EP2025792A1/fr
Application granted granted Critical
Publication of EP2025792B1 publication Critical patent/EP2025792B1/fr
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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
    • D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics

Definitions

  • the present invention relates to a brushing machine used in the field of surface treatment of fabrics.
  • brushing machines comprising a sequence of brushes interleaved with Idle rollers are well known, wherein the rollers cause a feed of the web of fabric along a zig - zag path, in such a way as to increase an angle of winding of the web of fabric on the brushes and to exert a traction action on the web itself, such that it adheres to the brushes.
  • the action of the rollers is not sufficient to guarantee a sufficient stretching effect and the web of fabric is not correctly held in contact with the brush.
  • situations can occur, in which the web of fabric is not sufficiently pressed against the brush and, consequently, the brush cannot exert a sufficiently energetic action. This can leads to the need for further treatment of the web or to the discard of the treated portion if the web of fabric is thereby damaged.
  • the technical aim of the present Invention is to provide a fabric brushing machine that allows the disadvantages described above to be solved.
  • the object of the invention is to provide a fabric brushing machine, which allows high efficiency in surface treatment of fabrics.
  • number 100 indicates, in its entirety, a fabric brushing machine, in particular for fabrics in the shape of continuous web.
  • the continuous web of fabric is indicated with the reference number 101.
  • the continuous web 101 is delivered from a feed station 200 and is subsequently fed to an exit station 300, for example in order to be subjected to further treatments.
  • the machine 100 having a configuration of substantially known type, comprises six consecutive stations 102, 103, 104, 105, 106, 107, through which the web 101 is made to advance and in correspondence of which a brushing treatment is carried out on a first side 101 a of the web 100.
  • the machine 100 further comprises three rotating brushes 108, 109, 110, each of which is rotatable around a respective rotation axis.
  • Each brush 108, 109, 110 is positioned in correspondence of a respective pair of stations 102, 107; 103, 106; 104, 105 in such a way as to treat simultaneously two distinct portions of the same web 101 of fabric.
  • each brush 108, 109, 110 acts simultaneously, in correspondence of two diametrically opposite portions thereof, on two distinct portions of the web 101.
  • the machine 100 comprises a plurality of guide rollers "R1", some of which are idle and some motorized, in order to transfer and to guide the web 101 according to a desired path passing through the above mentioned stations 102, 103, 104, 105, 106, 107.
  • the machine 100 further comprises suitable auxiliary rollers "R2", which are interleaved with the brushes 108, 109, 100, in order to increase an angle of contact of the web 101 on each of the brushes 108, 109, 110.
  • the stations 102, 103, 104, 105, 106, 107 are identical to one another. Therefore, only one of the above mentioned stations 102, 103, 104, 105, 106, 107 will be described hereunder, and in particular the station 106.
  • the station 106 is shown in figure 2 as regards the contribution given to it from the present invention, whilst the known components thereof are not included for the sake of simplicity of description.
  • the machine 100 comprises a contrast element 1 for each station 102, 103, 104, 105, 106, 107.
  • the contrast element 1 is suitable to act on a second side 101 b of the web of fabric, opposite to the above mentioned first side 101a.
  • the contrast element 1 is mounted opposite to the respective brush 109 with respect to the web 101 of fabric, and it defines, in cooperation with the brush 109, a nip through which the web 101 is made to advance.
  • the contrast element 1 can abut the brush 106 in order to press the web 101 against the brush 109, thus increasing the brushing effect on the first side 101 a of the web 101.
  • the machine 100 comprises thrust means, not shown, that act on the contrast element 1 in order to maintain it pressed against the brush 109 and, possibly, to move the contrast element 1 towards or away from the brush 109.
  • the feed of the web 101 occurs according to a direction indicated with "A”
  • the brush 109 rotates around its own axis "X” according to a direction of rotation indicated with "D”, which is opposite to the direction "A" of feed of the web 101.
  • Figure 3 shows the contrast element 1 according to a preferred embodiment.
  • the contrast element 1 extends along an axis "Y" between a first end 2 and a second end 3, in correspondence of which support means 4 are provided, which have the function of supporting and guiding the support element 1 during operation of the machine 100.
  • the support means 4 are shown in shape of cylindrical terminals 4a.
  • the axis "Y" of the contrast element 1 coincides with a prevalent direction of development thereof. Furthermore, the axis "Y” is preferably parallel to the axis "X" of rotation of the brush 109.
  • the contrast element 1 has an outer surface 5, which can be directly engaged with the second side 101 b of the web 101 of the fabric, in order to maintain the web 101 pressed against the brush 109 and therefore in contact therewith.
  • the outer surface 5 has a first intermediate cylindrical portion 6, which is preferably entirely cylindrical, designed to abut the brush 109 during an operation of the machine 100.
  • a first intermediate cylindrical portion 6 which is preferably entirely cylindrical, designed to abut the brush 109 during an operation of the machine 100.
  • the above mentioned axis "Y" of the contrast element 1 is an axis of axial symmetry of the first cylindrical portion 6.
  • the outer surface 5 has two second portions 7 with partially cylindrical shape.
  • the first portion 6 and the second portions 7 have preferably circular cross section and are mutually coaxial.
  • the second portions 7 have a flattened area, which defines a tapered shape of said potions, as will be described in more detail here below.
  • the first portion 6 and the second portions 7 have a same curvature radius, and are mutually connected in a continuous manner, i.e. they form a continuous outer surface. According to figure 3 , the first portion 6 and the second portions 7 are convex.
  • the second portions 7 define an extension of a part of the cylindrical surface of the first portion 6, in such a way so as to eliminate discontinuities and/or variations in the diameter during passage from the first portion 6 to the second portions 7.
  • the outer surface 5 of the contrast element 1, surface which is suitable to engage with the brush 109 can be obtained through intersection between a cylindrical surface, preferably with circular cross section, and a pair of planes inclined with respect to the above mentioned axis "Y" of the contrast element 1, i.e. to an axis of symmetry of the above mentioned cylindrical surface.
  • the portion of the above mentioned cylindrical surface not affected by the intersection with the inclined planes forms the first cylindrical portion 6 of the contrast element 1, whilst the portions affected by the intersection with the inclined planes form the second portions 7.
  • the two end portions 7 have an outer surface which is cylindrical except for the two flattened areas 8, each of which is planar and gradually extends from the outer cylindrical surface towards the respective end and the axis of the contrast element 1.
  • the second portions 7 present a tapered conformation extending away from the first portion 6.
  • the cylindrical part of the second portions 7 becomes narrower moving from the first portion 6 towards the corresponding end 2, 3.
  • the tapered configuration of the second portions 7 allows to vary the contact area between the contrast element 1 and the brush 109 by varying the angular position of the contrast element 1 around its own axis "Y".
  • the above mentioned second tapered portions 7 can be seen as chamfers 8 obtained on a cylindrical surface, which would normally extend between the ends 2, 3 of the contrast element 1, i.e. as removals of material from this cylindrical surface in order to increasingly reduce the thickness of the contrast element 1 towards the respective one of the above mentioned ends 2, 3. Consequently, by orienting the contrast element 1 in a different manner around its axis "Y" it is possible for the above mentioned flattened portions 8 to face more or less the brush 109 and this leads to a smaller or larger contact surface between the contrast element 1 and the brush 109.
  • the contrast element 1 can move around an adjustment axis, which coincides with the axis "Y" thereof and the orientation, i.e. the angular position, of the contrast element 1 around said axis "Y" can be adjusted according to the width of the web 101 of fabric to be treated.
  • the contrast element 1 can be fixed in a stable manner according to a desired angular orientation which is maintained during the entire working cycle of the machine 100.
  • the angular orientation of the contrast element 1 around its axis "Y" can be adjusted, in such a way that the dimension of the contact surface between the outer surface 5 of the contrast element 1 and the brush 109 is substantially equal to the width of the web 101.
  • the chamfers 8 can be thus positioned advantageously in such a way as to cover the excess of the outer surface 5 of the contrast element 1 with respect to the width of the web 101.
  • the machine 100 comprises adjusting means, not shown, which act on the contrast element 1 in order to position it according to a desired angular orientation around its axis "Y" and to maintain it stably in said angular orientation during normal operation of the machine 100.
  • the adjusting means are suitable to set the contrast element 1 in any one of a a plurality of angular orientations around its axis "Y", and more preferably to vary in a continuous manner the orientation of the contrast element 1 around the axis "Y".
  • the contrast element 1 is symmetrical with respect to a plane perpendicular to the axis "Y" of the contrast element 1 itself. According to an embodiment not shown, which is however comprised within the scope of the concept on which the invention is based, the contrast element 1 has only one tapered portion 7, arranged atone end of the first cylindrical portion 6 and extending between said intermediate cylindrical portion 6 and the respective axial end 2 or 3 of the contrast element 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Brushes (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (11)

  1. Machine pour brosser le tissu, comprenant au moins une brosse rotative (109) pour un traitement de surface d'un premier côté (101a) d'un tissu de toile (101), et un élément de contraste (1) adapté pour définir, en coopération avec la brosse (109), un point de pinçage à travers lequel ledit tissu (101) peut passer, ledit élément de contraste (1) étant placé au niveau de la brosse (109) afin de confiner le tissu (101) dans une zone de contact entre la brosse (109) et le tissu pendant la rotation de la brosse, ledit élément de contraste (1) ayant une surface extérieure (5) qui peut être directement en prise avec un second côté (101b) du tissu de toile (101) opposé audit premier côté (101a), afin de maintenir le tissu de toile (101) comprimé contre la brosse (109) et donc en contact avec elle, caractérisée en ce que ladite surface extérieure (5) a une dimension, mesurée le long d'un axe (X) de rotation de la brosse (109), qui peut être ajustée selon une largeur correspondante de la toile (101) du tissu traité.
  2. Machine selon la revendication 1, caractérisée en ce que ladite dimension de la surface extérieure (5), mesurée le long dudit axe (X) de rotation, peut varier de manière continue entre une valeur minimale et une valeur maximale, à travers un mouvement d'ajustement pour ajuster l'élément de contraste (1) autour d'un axe d'ajustement (Y) correspondant.
  3. Machine selon la revendication 1 ou 2, caractérisée en ce que ladite surface extérieure (5) est définie par une intersection entre une surface cylindrique et au moins une surface inclinée passant à travers une génératrice externe de la surface cylindrique et l'axe de symétrie de ladite surface cylindrique, de façon à définir une première partie totalement cylindrique (6) de ladite surface extérieure (5) et au moins une seconde partie (7) de ladite surface extérieure (5), qui est partiellement cylindrique, ladite seconde partie étant disposée entre ladite première partie entièrement cylindrique (6) et une extrémité respective (2, 3) dudit élément de contraste (1).
  4. Machine selon la revendication 3, caractérisée en ce que ladite surface cylindrique a une section transversale circulaire.
  5. Machine selon la revendication 3 ou 4, caractérisée en ce que ladite au moins une surface inclinée est plane.
  6. Machine selon la revendication 3, 4 ou 5, caractérisée en ce que ladite seconde partie (7) de la surface extérieure (5) a une partie cylindrique, qui se rétrécit depuis ladite première partie (6) vers l'extrémité respective (2, 3) de l'élément de contraste (1), ladite seconde partie (7) ayant une forme conique.
  7. Machine selon une ou plusieurs des revendications 3 à 6, caractérisée en ce que ladite première partie totalement cylindrique (6) est disposée dans une position intermédiaire, deux secondes parties partiellement cylindriques (7) s'étendant respectivement entre ladite partie entièrement cylindrique (6) et une extrémité respective (2, 3) dudit élément de contraste.
  8. Machine selon une ou plusieurs des revendications précédentes, caractérisée en ce que ledit élément de contraste (1) est mobile selon un mouvement d'ajustement autour d'un axe (Y) correspondant, ladite machine (100) comprenant des moyens d'ajustement agissant sur l'élément de contraste (1), afin de le maintenir dans une position stable selon une orientation souhaitée au moins pendant une opération de ladite machine (100).
  9. Machine selon les revendications 3, 4, 5, 6 ou 7, caractérisée en ce que ledit axe (Y) de l'élément de contraste (1) est un axe de symétrie axiale de ladite première partie entièrement cylindrique (6).
  10. Machine selon la revendication 9, caractérisée en ce que ledit axe de l'élément de contraste est parallèle à l'axe de rotation de la brosse.
  11. Machine selon une ou plusieurs des revendications précédentes, caractérisée en ce que l'élément de contraste (1) est associé à des moyens de poussée qui agissent sur l'élément de contraste (1) pour déplacer ledit élément de contraste (1) vers la brosse (109) et dans une direction opposée à celle-ci.
EP08425510A 2007-07-31 2008-07-25 Machine à brosser pour tissus Active EP2025792B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000180A ITFI20070180A1 (it) 2007-07-31 2007-07-31 Macchina spazzolatrice per tessuti

Publications (2)

Publication Number Publication Date
EP2025792A1 EP2025792A1 (fr) 2009-02-18
EP2025792B1 true EP2025792B1 (fr) 2011-04-13

Family

ID=39870238

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08425510A Active EP2025792B1 (fr) 2007-07-31 2008-07-25 Machine à brosser pour tissus

Country Status (4)

Country Link
EP (1) EP2025792B1 (fr)
AT (1) ATE505576T1 (fr)
DE (1) DE602008006134D1 (fr)
IT (1) ITFI20070180A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800008103A1 (it) * 2018-08-16 2020-02-16 Sintec Textile Srl Apparato e metodo per la smerigliatura di tessuti

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1400446A (en) * 1920-07-17 1921-12-13 Mccreary John Machine for treating blankets
GB198050A (en) * 1922-02-23 1923-05-23 Arthur Meats Improvements in or relating to machines for brushing up fabric
FR644542A (fr) * 1927-09-10 1928-10-09 Gaston Andre Auguste Borios Machine à garnir ou à gratter les tissus
US3153836A (en) * 1963-07-17 1964-10-27 Hadley Company Inc Fabric napping mechanism
US5109630A (en) * 1990-01-08 1992-05-05 Milliken Research Corporation Machine and method to enhance fabric
IT1269704B (it) * 1994-01-27 1997-04-15 Sperotto Rimar Spa Cilindro sagomato per macchine garzatrici e/o smerigliatrici
DE19849606A1 (de) * 1998-10-28 2000-05-25 M Tec Maschbau Gmbh Schmirgelmaschine zur Bearbeitung einer Textilbahn
IT1318299B1 (it) * 2000-08-01 2003-07-28 Sperotto Rimar Spa Macchina per l'ammorbidimento superficiale di un tessuto

Also Published As

Publication number Publication date
ITFI20070180A1 (it) 2009-02-01
EP2025792A1 (fr) 2009-02-18
ATE505576T1 (de) 2011-04-15
DE602008006134D1 (de) 2011-05-26

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