EP0484812A1 - Vorrichtung für die Bildung eines mehrschichtigen Vlieses aus zufallsorientierten Fasern sowie ein mit dieser Vorrichtung angefertigtes Vlies - Google Patents

Vorrichtung für die Bildung eines mehrschichtigen Vlieses aus zufallsorientierten Fasern sowie ein mit dieser Vorrichtung angefertigtes Vlies Download PDF

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Publication number
EP0484812A1
EP0484812A1 EP91118493A EP91118493A EP0484812A1 EP 0484812 A1 EP0484812 A1 EP 0484812A1 EP 91118493 A EP91118493 A EP 91118493A EP 91118493 A EP91118493 A EP 91118493A EP 0484812 A1 EP0484812 A1 EP 0484812A1
Authority
EP
European Patent Office
Prior art keywords
fibers
veil
large drum
cylinders
web
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
EP91118493A
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English (en)
French (fr)
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EP0484812B1 (de
Inventor
Marco Maranghi
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.)
FA-MA JERSEY SpA
Original Assignee
FA-MA JERSEY SpA
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Filing date
Publication date
Application filed by FA-MA JERSEY SpA filed Critical FA-MA JERSEY SpA
Publication of EP0484812A1 publication Critical patent/EP0484812A1/de
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Publication of EP0484812B1 publication Critical patent/EP0484812B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/46—Doffing or like arrangements for removing fibres from carding elements; Web-dividing apparatus; Condensers
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged

Definitions

  • the invention relates to an apparatus for forming a veil with multiple layers of "randomized" fibers, to be applied to cards equipped with drum cylinders with toothed linings, or card plates or card caps, as well as the veil produced by means of this device.
  • Two different types of apparatus are already known for the formation of fiber webs.
  • the veil of fibers is formed on the last cylinder - which can be a comber or a condenser - from which it is detached by sampling elements, for example cylinders, combers or the like.
  • sampling elements for example cylinders, combers or the like.
  • a second type of apparatus is known, with which the veil is formed by removing the fibers from a distributor, normally constituted by a large cylinder or large drum by an air suction system which deposits the fibers on a strip. conveyor, or on a perforated net, positioned below the appliance.
  • a distributor normally constituted by a large cylinder or large drum by an air suction system which deposits the fibers on a strip. conveyor, or on a perforated net, positioned below the appliance.
  • Examples of this type of apparatus are described in US Patent No. 4097965 of 4/7/78 in the name of Scott Paper Co and in EPO Application No. 83302408.6 of 28/4/83 in the name of Chicopee.
  • These different types have a drawback: all the fibers are aligned transversely to the advancement of the strip, they therefore remain isolated from each other and incoherent.
  • the object of the present invention is to increase the productivity of the machine by obtaining a haze, even of considerable weight, while nevertheless having a uniform and compact product.
  • an apparatus which includes a number of devices for removing fibers from the large drum by means of "mechanical” systems, such as cylinders, combing machines or the like, combined with a device used for removing from the large drum the residual fibers by an air suction system, so that the veil (s) produced exclusively by "mechanical” means and the veil produced exclusively by means of the air suction can be superimposed on a conveyor belt, creating a veil with multiple layers, characterized by an exceptional uniformity and a very high randomization.
  • the apparatus which is the subject of the present invention, which combines the two known systems for removing fibers - "mechanical" and by air suction system - makes it possible to produce sails with a wide variety of weights.
  • the mechanical sampling system does not make it possible to obtain sails weighing more than 30 g / m2 per sampling point
  • the air suction sampling system which collects all the residual fibers of the drum, does not impose any limitation and allows to produce sails whose weight can reach up to 200 g / m2, independently of the speed of the machine.
  • the quality of the product is better, since the residual fibers, which the cleaning cylinders do not succeed in detaching, are the most refined and they are distributed over the drum more evenly, since they are inside the linings of the drum.
  • These fibers are not drawn back by the drum but they are collected by the air suction system and they form a complementary veil whose quality characteristics are excellent, which is added to the other veils condensed by means " mechanical ".
  • the veil thus obtained is clearly more compact, more regular; the fibers are more randomized and there is the possibility of increasing the weight of the veil.
  • the productivity of the machine can be increased because the subsequent removal of the residual fibers from the drum leaves sufficient space for a larger quantity of feed fibers.
  • the number (10) indicates a card known for the formation of fiber veils.
  • the outer surface of the large drum (11) is equipped with a toothed lining (13) illustrated in FIG. 2.
  • a combing cylinder (12) rotates in the opposite direction to that of the large drum (11), and its toothed lining takes off part of the fibers, fed by the large drum (11).
  • the fiber mat which forms is then condensed by the condensing cylinders (17) and (17 ′), from where it is removed by means of sampling cylinders (20) and (20 ′), which deposit it on a strip. conveyor (18).
  • the painter cylinder (22) also rotates in the opposite direction of rotation to that of the large drum (11) and by means of its toothed lining (14), indicated in FIG. 2, it takes a later part (16) of the fibers. (15) remained on the large drum (11).
  • the fiber mat which forms is then condensed by the condensing cylinders (27) and (27 ′), from where it is taken up by sampling cylinders (30) and (30 ′), which deposit it on a conveyor belt (28).
  • the layer of fibers originating from the part (19) of the strip (18) is also deposited, thus forming a double layer of fibers.
  • the position of the vacuum chamber (21) relative to the large drum (11) is such that the residual fibers (31) are sucked in and come off the drum.
  • the suction system (23) sucks the air through a net or a perforated conveyor belt (24) where the residual fibers (31) are deposited, there they are conveyed by the walls (25) and (26) and by the side walls of the vacuum chamber (21) quine are not illustrated in the drawings.
  • On the veil thus formed on the strip (24), are superimposed those which come from the strip parts (19) and (29), forming three layers of fibers which are then consolidated together by known means.
  • FIG. 3 illustrates one of the possible variants of the present invention, with three groups of cylinders (12, 17, 17 ′, 20, 20 ′; 22, 27, 27 ′, 30, 30 ′; 32, 37, 37 ′, 40, 40 ′); and four conveyor belts (18, 19; 28, 29; 38, 39; 24).
  • the portion of fibers remaining on the large drum (11) meets the third comb cylinder (32) for the third formation of the web.
  • the air suction system (23) removes from the internal part of the toothed lining (13) of the large drum (11) the residual fibers (31), which are better carded, leaving the large drum (11) completely clean.
  • the number of combing cylinders (12, 22, 32) and the relative condensing cylinders (17, 17 ′, 27, 27 ′, 37, 37 ′) will be established on the basis of the characteristics of the fibers supplied and of the desired product.
  • the present invention makes it possible to obtain a uniform and regular veil, not only by virtue of the different quality of the veils of different formation, but also because the defects liable to derive from unequal excess of fibers in the diet are distributed over routes. of different nature and length, which is why any insufficient supply will be subdivided into different sails, the thinnest areas of which will never correspond and never overlap on the perforated conveyor belt (24). We thus obtain an effect analogous to that of varnishing with "several layers" which, as we know, is more uniform with a smaller total amount of product only one thicker layer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Details Of Garments (AREA)
EP91118493A 1990-11-06 1991-10-30 Vorrichtung für die Bildung eines mehrschichtigen Vlieses aus zufallsorientierten Fasern sowie ein mit dieser Vorrichtung angefertigtes Vlies Expired - Lifetime EP0484812B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT12539A IT1241899B (it) 1990-11-06 1990-11-06 Apparecchio per la formazione di un velo a molti strati di fibre randomizzate, e velo ottenuto con detto apparecchio
IT1253990 1990-11-06

Publications (2)

Publication Number Publication Date
EP0484812A1 true EP0484812A1 (de) 1992-05-13
EP0484812B1 EP0484812B1 (de) 1996-03-20

Family

ID=11141349

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91118493A Expired - Lifetime EP0484812B1 (de) 1990-11-06 1991-10-30 Vorrichtung für die Bildung eines mehrschichtigen Vlieses aus zufallsorientierten Fasern sowie ein mit dieser Vorrichtung angefertigtes Vlies

Country Status (4)

Country Link
EP (1) EP0484812B1 (de)
AT (1) ATE135758T1 (de)
DE (1) DE69118110D1 (de)
IT (1) IT1241899B (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0608686A1 (de) * 1993-01-26 1994-08-03 Chemnitzer Spinnereimaschinenbau GmbH Deckelkarde
EP0704561A1 (de) * 1994-09-30 1996-04-03 A. Thibeau Et Cie (S.A.) Vorrichtung zur Abnahme und zum Transportieren mit hoher Geschwindigkeit eines Faservlieses am Ende einer Karde
WO1997000984A1 (de) * 1995-06-20 1997-01-09 Spinnbau Gmbh Vlieskrempel, sowie verfahren zur vliesherstellung
EP0962561A1 (de) * 1998-06-05 1999-12-08 FONDERIE OFFICINE RIUNITE F.O.R. ING. GRAZIANO DI L. GRAZIANO & C. S.a.s. Kardiermaschine mit einer Abnehmerwalze
EP1046731A1 (de) * 1999-04-20 2000-10-25 F.O.R. ING. GRAZIANO S.p.A. Kardiervorrichtung, insbesondere zur Vorbereitung von Vliesen für Faserverbundmaterialien
EP1371760A1 (de) * 2002-06-10 2003-12-17 Fincarde S.p.A. Karde zur Vorbereitung von randomisierten Vliesen für Vliesstoffe
US7003853B2 (en) 2003-07-29 2006-02-28 Spinnbau Gmbh Intermediate card for manufacturing nonwovens of fibrous material as well as method for manufacturing nonwovens of fibrous material
EP0817875B2 (de) † 1995-03-31 2006-08-16 Spinnbau GmbH Vorrichtung und gerät für die herstellung von vliesen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB277838A (en) * 1926-12-07 1927-09-29 Patrick Henry Walsh Improvements in and relating to carding machines
GB338155A (en) * 1929-05-14 1930-11-14 Proctor & Schwartz Inc Improvements relating to apparatus for use in the manufacture of batting and felts
EP0093585A2 (de) * 1982-04-29 1983-11-09 Chicopee Verfahren und Vorrichtung zur Herstellung, mit hoher Geschwindigkeit, von gleichmässigen Faservliesen
EP0330750A2 (de) * 1988-02-19 1989-09-06 Spinnbau GmbH Wirrvlieskrempel mit mindestens drei Arbeitstrommeln

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB277838A (en) * 1926-12-07 1927-09-29 Patrick Henry Walsh Improvements in and relating to carding machines
GB338155A (en) * 1929-05-14 1930-11-14 Proctor & Schwartz Inc Improvements relating to apparatus for use in the manufacture of batting and felts
EP0093585A2 (de) * 1982-04-29 1983-11-09 Chicopee Verfahren und Vorrichtung zur Herstellung, mit hoher Geschwindigkeit, von gleichmässigen Faservliesen
EP0330750A2 (de) * 1988-02-19 1989-09-06 Spinnbau GmbH Wirrvlieskrempel mit mindestens drei Arbeitstrommeln

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0608686A1 (de) * 1993-01-26 1994-08-03 Chemnitzer Spinnereimaschinenbau GmbH Deckelkarde
EP0704561A1 (de) * 1994-09-30 1996-04-03 A. Thibeau Et Cie (S.A.) Vorrichtung zur Abnahme und zum Transportieren mit hoher Geschwindigkeit eines Faservlieses am Ende einer Karde
FR2725216A1 (fr) * 1994-09-30 1996-04-05 Thibeau & Cie Sa A Dispositif pour detacher et transporter a grande vitesse un voile fibreux en sortie de carde
US5584101A (en) * 1994-09-30 1996-12-17 Thibeau (Sa) Apparatus for removing and conveying a fiber web at high speed from the outlet from a carder
EP0817875B2 (de) † 1995-03-31 2006-08-16 Spinnbau GmbH Vorrichtung und gerät für die herstellung von vliesen
WO1997000984A1 (de) * 1995-06-20 1997-01-09 Spinnbau Gmbh Vlieskrempel, sowie verfahren zur vliesherstellung
EP0962561A1 (de) * 1998-06-05 1999-12-08 FONDERIE OFFICINE RIUNITE F.O.R. ING. GRAZIANO DI L. GRAZIANO & C. S.a.s. Kardiermaschine mit einer Abnehmerwalze
EP1046731A1 (de) * 1999-04-20 2000-10-25 F.O.R. ING. GRAZIANO S.p.A. Kardiervorrichtung, insbesondere zur Vorbereitung von Vliesen für Faserverbundmaterialien
EP1371760A1 (de) * 2002-06-10 2003-12-17 Fincarde S.p.A. Karde zur Vorbereitung von randomisierten Vliesen für Vliesstoffe
US7003853B2 (en) 2003-07-29 2006-02-28 Spinnbau Gmbh Intermediate card for manufacturing nonwovens of fibrous material as well as method for manufacturing nonwovens of fibrous material

Also Published As

Publication number Publication date
EP0484812B1 (de) 1996-03-20
IT9012539A1 (it) 1992-05-06
IT1241899B (it) 1994-02-01
IT9012539A0 (it) 1990-11-06
DE69118110D1 (de) 1996-04-25
ATE135758T1 (de) 1996-04-15

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